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| Silica nanospheres formation induced by peroxidase-catalyzed phenol polymerization | |
| 引用本文： | WANG He,CHEN Yang,ZHANG Fusuo,FANG Jiangyu. Silica nanospheres formation induced by peroxidase-catalyzed phenol polymerization[J]. 自然科学进展(英文版), 2003, 13(7): 501-504 |
| 作者姓名： | WANG He CHEN Yang ZHANG Fusuo FANG Jiangyu |
| 作者单位： | College of Resources and Environmental Sciences, China Agricultural University, Beijing 100094, China,College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China,College of Resources and Environmental Sciences, China Agricultural University, Beijing 100094, China,College of Resources and Environmental Sciences, China Agricultural University, Beijing 100094, China; College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China |
| 基金项目： | Supported by the Major State Basic Research Development Program of China (Grant No. G199011707) and the National Natural Science Foundation of China (Grant Nos. 30170550 and 30170175) |
| 摘 要： | To examine whether lignin-like compound is correlated with silica precipitation in grass, a series of simulated chemical experiments were carried out at ambient temperature and pressure, close to cell wall pH, with phenol polymerization catalyzed by peroxidase in silicon solution. The experiments showed that phenol polymer (a kind of lignin-like substance) caused silica nanosphere precipitation similar to those caused by protein in diatom cell wall previously reported by other authors. The sphere diameter varied with different kinds of phenol and the concentrations of phenol and silicon. Silicon precipitation had phenol and silicon saturation effect, meaning that when the concentration ratio of soluble silicon to phenol exceeded a certain value, the amount of silicon precipitation would decrease. |
| 关 键 词： | silicon phenol peroxidase |
Silica nanospheres formation induced by peroxidase-catalyzed phenol polymerization |
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| FANG Jiangyu,WANG He,CHEN Yang,ZHANG Fusuo. Silica nanospheres formation induced by peroxidase-catalyzed phenol polymerization[J]. Progress in Natural Science, 2003, 13(7): 501-504 | |
| Authors: | FANG Jiangyu WANG He CHEN Yang ZHANG Fusuo |
| Affiliation: | 1. College of Resources and Environmental Sciences, China Agricultural University, Beijing 100094, China; College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China 2. College of Resources and Environmental Sciences, China Agricultural University, Beijing 100094, China 3. College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China |
| Abstract: | To examine whether lignin-like compound is correlated with silica precipitation in grass, a series of simulated chemical experiments were carried out at ambient temperature and pressure, close to cell wall pH, with phenol polymerization catalyzed by peroxidase in silicon solution. The experiments showed that phenol polymer (a kind of lignin-like substance) caused silica nanosphere precipitation similar to those caused by protein in diatom cell wall previously reported by other authors. The sphere diameter varied with different kinds of phenol and the concentrations of phenol and silicon. Silicon precipitation had phenol and silicon saturation effect, meaning that when the concentration ratio of soluble silicon to phenol exceeded a certain value, the amount of silicon precipitation would decrease. |
| Keywords: | silicon phenol peroxidase |
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